Boiler with superheater



B. BROIDO. QOILER WITH SUPERHEATER A/PPLICAUON man JluLY27,19`18. v

Patented Aug. 16, 1921.

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BENJAMIN RRoIDo, or NEW YoRR, N. Y., AssIeNoR To THE 's UrERHEATER CoM- PANY, or NEW YORK, N. Y., a CORPORATION or DELAWARE.

BOILER WITH s'UPERHEA'rER.

To all whom vit/ may concern:

Be it known ,thatI, BENJAMIN B Roino, a citizen of the United States, and resident of ANew York, N.- Y., havei'nvented certain new and useful Improvements in Boilers with Superheaters, whereof the following is a description according to the statutory requirements.' y v Myinvention has reference to boilers of the water tube type which are equipped with.

superheaters, and particularly to those boilers of the type referred to -in which the superheater is made up of elements vsecured to a header or headers in a readily detachable manner, the elements being arranged transversely to and between rows of water tubes.

It frequently happens in water tube' boilers that the space between adjacent boilers or between a boiler and a building wall is so restrictedthat the superheater element could not be removed on account of such space limitations if the elements were arranged as described, and that' therefore some other, perhaps less desirable location or arrangement for the superheater has to be chosen.' The present invention purposes to make available the use of this advantageous arrangement even in cases where the space is restricted as mentioned, and to do so without resorting to a bending of the superheater elements or to any other complicated forms of the parts.

The invention will be understood from the following description. which is to be read in connection with the accompanying drawings. In the'latter, Figure 1 is a longitudinal central section of a water tube boiler.

` of a well-known form with my invention applied; Fig. 2 is a section of Fig. 1 online 2-.2; Fig. 3 is an enlarged section of Fig. 1 on line 3 3; Fig. 4 is a view similar to Fig. 1 showing my invention somewhat modified in a boiler of another type Fig. 5 shows the same modification of the invention applied to a boiler like that of Fig. 1, only a portion of the boiler being shown; Fig. G' is a view similar to Fig. 5 of' a modification; while Fig. 7 is a section on line 7-*7 of Fig 6.

The boiler used in Figs. 1 to 3 to illustrate my invention, comprises the steam and water drums 1, the water legs 2-2 connected by the water tubes 3, over which the 'hot gases from furnace I are directed by baiiies 5 and steciaeatien of Letters Patent. Patented Aug. 16., 4192L i vappliee'eieii sied Juiy 27, 191s. serial No. 247,028.

5a. These parts are arranged as usual. It

has been' proposed heretofore, as stated above, to install a superheater in such a boiler above the first or second'lowest banks of water tubes, in a location similar 'in a general way to that shown in the figures.`

in Athe direction of their axes.- When the.

space is limited, such removal may be impossible as pointed ont above. In Fig. 3, e. g., dotted linef may represent the setting of the next boiler, or the boiler room wall,

`and itwill be clear that the elements could not be drawn out. Some modifications and rearrangements have been proposed, but

none of them have, as far as I know, proved successful.

In the superheater arrangement according to Amy invention and as shown in these figures, the loops 7 have their two ends secured to headersv 8 and 9. Of these two 8 is the header for saturated steam, delivered to it by pipe lQfrom steam and water drums 1.; and 9"is the header for superheated steam,

delivered to it by the 'elements 7 and carried off from 1t through nozzle 11 to the engine not shown). The elements are alined, as will be seen, and a space 12 is left above them, between them and the neXt row of water tubes. Referring to the dimension of the element in the direction at right angles to the set by the term depth and to the dimension parallel to the water tubes as width the space 12 may be stated to be greater than the width but smaller than the depth of an element. In the wall of the setting there is the opening 13, normally closed by door 14. This opening is located near the front and its front and rear sides, 15 and 16, are at an angle to the wall, as clearly seen in the drawing, though it may in some cases be unnecessary to give them this angle. If the superhe'ater elements are all located in front of the baiile 5 only one such opening is required; where there are. as in the case shown, also elements between baiiies 5 and 5, a second just described, these elements may, if de! such tubes in Fig. 4. While the elements areV When now in practice it is desired to remove an element, its ends are detached from the headers, 1t is then raised and turned on its side,.after which it is swung around and moved out through the1opening 13 4(or 13a) two of the positions given to it being indicated in dotted lines in Fig. 3. This allows withdrawal of the element from the setting.

without it, at any time, projecting out anywhere near its full length at right angles to` the setting. It willbe evident that the size of the opening 13 and the inclination of its sides may be varied to suit circumstances.

It may not be amiss to point out that the header 8 lies sutliciently below `therow of water tubes above it to permit the element to` pass over it.

Instead of being arranged with the planes of the individual superheater elements, per pendicular to the water tubes, as in the form sired, be inclined, as illustrated in Fig. 5. This facilitates raising the elements out of the row into the space above them. Their removal is accomplished in other respects just as in the first form. f"

To illustrate that my invention is equally applicable to cases where the boiler tubes i are considerably inclined to the horizontal,

I show it used in the case of a boiler with vertical.

Figs. 6 and 7 show an extension of my inventive idea to cases where it is desired to make the superheater elements up of two loops each. These loops, 18 and 19, are'con nected by a union 16 or other preferred means. One or more rows of water tubes may be inserted between the two sets of loops, as shown at 17. The ends of eachy composite element are secured to the headers 8 and 9.` Above the loops 18 and below 4the loops 19 are the spaces 12a and 12b.

To remove any given element, its -union 16 is unscrewed, its upper loop 18 is raised above the others and laid on its side and disclosure is intended to be by way of illusj, t.

tration, not limitation.

What I claim is:

1. In a water tube boiler, the combination of two spaced parallel rows of water tubes,

and a superheater with alined elements extending into the spacebetween the rows of water tubes and in arow parallel to them,

each element being of greater depth than width, a space being left between the row.

of superheater elements and one of the adjacent rows of water tubes greater than the lwidth of an element but less than .its depthl 2. In a boiler, the combination of two headers, two rows of water tubes connecting.l them, and lying in spaced parallel planes, and

a row of alined tubular superheater elements extending into the space at right an les to the water tubes, the depth of each element, being greater than the width, the size, spacing and proportions of these parts being such that there is sufficient room between the superheater elements and one row of water tubes to permit a superheater element to be moved into and about init, but only by keeping it with its larger dimension substantially'in a plane parallel to the water tubes.

3. In a water tube boiler the combination of two spaced parallel rows of water tubes, a superheater with alined elements extending at right angles to th'e water tubes into the space between the rows and in a row parallel-to them, each element being of greater depth than width, a space being left between the row of superheater elements andl one of the adjacent rows of water tubes, the,-

space being greater than the width, but less than the depth of an element, and a setting comprising a wall adjacent to the water tubes, said wall having an opening alined with the space and with its front and rear sides at an oblique angle to the wall.

BENJAMIN BROIDO. 

